/* Modern Portfolio Styles - Using Latest CSS Features */

/* Advanced CSS Custom Properties with Color Functions */
:root {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --nav-bg: #fff;
    --nav-text: #333;
    --card-bg: #fff;
    --accent-color: #4a90e2;
    --footer-bg: #333;
    --footer-text: #fff;
    
    /* Modern color functions */
    --accent-hover: color-mix(in srgb, var(--accent-color) 80%, black);
    --accent-light: color-mix(in srgb, var(--accent-color) 20%, white);
    --glass-bg: color-mix(in srgb, var(--card-bg) 85%, transparent);
    
    /* Advanced spacing system */
    --space-xs: clamp(0.5rem, 0.5vw, 0.75rem);
    --space-sm: clamp(1rem, 1.5vw, 1.5rem);
    --space-md: clamp(1.5rem, 2.5vw, 2.5rem);
    --space-lg: clamp(2rem, 4vw, 4rem);
    --space-xl: clamp(3rem, 6vw, 6rem);
    
    /* Modern shadows with multiple layers */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px color-mix(in srgb, var(--accent-color) 40%, transparent);
    
    /* Animation timing */
    --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Modern smooth scrolling with scroll behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Advanced body styling with gradient background */
body {
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 18px;
    background: 
        radial-gradient(circle at 20% 50%, color-mix(in srgb, var(--accent-color) 8%, transparent) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, color-mix(in srgb, var(--accent-color) 6%, transparent) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-color) 0%, color-mix(in srgb, var(--bg-color) 95%, white) 100%);
    background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Animated background particles effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(74, 144, 226, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(74, 144, 226, 0.08) 0%, transparent 50%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Glassmorphism Navbar with Backdrop Filter */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease-smooth);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid color-mix(in srgb, var(--accent-color) 10%, transparent);
    overflow: visible;
}

.navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--accent-color) 50%, 
        transparent 100%);
    opacity: 0.3;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-lg);
    align-items: center;
    position: relative;
    overflow: visible;
}

/* Animated Logo with Gradient Text */
.logo {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    background: linear-gradient(135deg, var(--accent-color) 0%, color-mix(in srgb, var(--accent-color) 70%, #8b5cf6) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
    transition: all 0.3s var(--ease-spring);
    position: relative;
    display: inline-block;
    padding-bottom: 0.1em;
    overflow: visible;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    transition: width 0.3s var(--ease-smooth);
}

.logo:hover::after {
    width: 100%;
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent-color) 50%, transparent));
}

/* Modern Navigation Menu with Advanced Selectors */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    justify-content: flex-end;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--nav-text);
    font-weight: 600;
    font-size: clamp(1.1rem, 1.5vw, 1.2rem);
    position: relative;
    padding: var(--space-xs) var(--space-sm);
    transition: all 0.3s var(--ease-smooth);
    border-radius: 8px;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    padding: 2px;
    background: linear-gradient(135deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 70%, #8b5cf6));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s var(--ease-smooth);
}

.nav-menu a:hover::before {
    opacity: 1;
}

.nav-menu a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
    background: color-mix(in srgb, var(--accent-color) 5%, transparent);
}

/* Main Content with Container Queries Support */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-lg);
    min-height: calc(100vh - 200px);
    position: relative;
    z-index: 1;
}

/* Hero Section with Advanced Animations */
.hero {
    text-align: center;
    padding: var(--space-xl) 0;
    position: relative;
    isolation: isolate;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, color-mix(in srgb, var(--accent-color) 15%, transparent) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero h2 {
    font-size: clamp(3rem, 9vw, 6rem);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-lg);
    background: linear-gradient(135deg, 
        var(--accent-color) 0%, 
        color-mix(in srgb, var(--accent-color) 80%, #8b5cf6) 30%,
        #ff6b9d 50%,
        color-mix(in srgb, var(--accent-color) 80%, #8b5cf6) 70%,
        var(--accent-color) 100%);
    background-size: 300% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.05;
    animation: gradientFlow 4s ease infinite, textGlow 3s ease-in-out infinite alternate;
    text-shadow: 0 0 30px rgba(74, 144, 226, 0.3);
    filter: drop-shadow(0 4px 20px rgba(74, 144, 226, 0.2));
    position: relative;
    transform: perspective(1000px) rotateX(2deg);
    transition: transform 0.3s ease;
}

.hero h2:hover {
    transform: perspective(1000px) rotateX(0deg) scale(1.02);
    animation: gradientFlow 2s ease infinite, textGlow 1.5s ease-in-out infinite alternate;
}

@keyframes textGlow {
    0% {
        filter: drop-shadow(0 4px 20px rgba(74, 144, 226, 0.2)) drop-shadow(0 0 30px rgba(74, 144, 226, 0.1));
    }
    100% {
        filter: drop-shadow(0 8px 40px rgba(74, 144, 226, 0.4)) drop-shadow(0 0 60px rgba(139, 92, 246, 0.3));
    }
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% center; }
    25% { background-position: 50% center; }
    50% { background-position: 100% center; }
    75% { background-position: 50% center; }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero p {
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    margin-bottom: var(--space-lg);
    color: color-mix(in srgb, var(--text-color) 80%, transparent);
    font-weight: 500;
}

/* Hero Buttons Container */
.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
}

/* Modern CTA Button with 3D Effects */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(135deg, var(--accent-color) 0%, color-mix(in srgb, var(--accent-color) 80%, #8b5cf6) 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: clamp(1.2rem, 1.8vw, 1.3rem);
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--ease-spring);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform-style: preserve-3d;
    vertical-align: middle;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    filter: brightness(1.1);
}

.cta-button:active {
    transform: translateY(-2px) scale(0.98);
}

/* About Section - Clean White Background */
.about {
    margin-top: var(--space-md);
    padding: var(--space-lg);
    background: #ffffff;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease-smooth);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    color: #1a1a1a;
}

.about p {
    color: #2d2d2d;
    font-size: clamp(1.2rem, 2vw, 1.4rem);
    line-height: 1.7;
}

.about:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.about h3 {
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 70%, #8b5cf6));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 800;
    position: relative;
    z-index: 1;
}

/* GitHub Link with Modern Styling */
.github-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(135deg, #24292e 0%, #2f363d 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: clamp(1.2rem, 1.8vw, 1.3rem);
    transition: transform 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth), background 0.2s var(--ease-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    vertical-align: middle;
    z-index: 1;
}

.github-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #2f363d 0%, #24292e 100%);
    opacity: 0;
    transition: opacity 0.2s var(--ease-smooth);
    z-index: -1;
}

.github-link:hover {
    background: linear-gradient(135deg, #2f363d 0%, #24292e 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.github-link:hover::before {
    opacity: 0;
}

.github-link:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

/* Ensure text stays readable */
.github-link span,
.github-link {
    position: relative;
    z-index: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Modern Footer */
footer {
    background: linear-gradient(135deg, var(--footer-bg) 0%, color-mix(in srgb, var(--footer-bg) 90%, black) 100%);
    color: var(--footer-text);
    text-align: center;
    padding: var(--space-lg) 0;
    margin-top: var(--space-xl);
    transition: background-color 0.3s ease, color 0.3s ease;
    position: relative;
    overflow: hidden;
    font-size: 1.1rem;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        color-mix(in srgb, var(--accent-color) 50%, transparent) 50%, 
        transparent 100%);
}

/* Gallery specific styles with modern features */
.gallery-header {
    text-align: center;
    padding: var(--space-lg) 0;
    margin-bottom: var(--space-lg);
    position: relative;
}

.gallery-header h2 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 70%, #8b5cf6));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.gallery-header p {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: color-mix(in srgb, var(--text-color) 80%, transparent);
}

.gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
}

/* Modern Style Cards with 3D Transform */
.style-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 20px;
    padding: var(--space-md);
    cursor: pointer;
    transition: all 0.4s var(--ease-spring);
    box-shadow: var(--shadow-md);
    border: 1px solid color-mix(in srgb, var(--accent-color) 10%, transparent);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.style-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        color-mix(in srgb, var(--accent-color) 10%, transparent) 0%, 
        transparent 100%);
    opacity: 0;
    transition: opacity 0.3s var(--ease-smooth);
    z-index: 0;
}

.style-card:hover::before {
    opacity: 1;
}

.style-card:hover {
    transform: translateY(-8px) rotateX(2deg);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: color-mix(in srgb, var(--accent-color) 30%, transparent);
}

.style-card.active {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    background: color-mix(in srgb, var(--accent-color) 5%, var(--card-bg));
}

.style-card > * {
    position: relative;
    z-index: 1;
}

.card-preview {
    width: 100%;
    height: 200px;
    border-radius: 16px;
    margin-bottom: var(--space-md);
    transition: all 0.4s var(--ease-spring);
    position: relative;
    overflow: hidden;
}

.card-preview::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s var(--ease-smooth);
}

.style-card:hover .card-preview::after {
    opacity: 1;
}

.style-card:hover .card-preview {
    transform: scale(1.05) rotateY(2deg);
    filter: brightness(1.1);
}

.style-card h3 {
    margin-bottom: var(--space-xs);
    color: var(--accent-color);
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    font-weight: 800;
}

.style-card p {
    color: color-mix(in srgb, var(--text-color) 70%, transparent);
    font-size: clamp(1.1rem, 1.5vw, 1.2rem);
}

/* Preview colors are now defined in gallery-styles.css */

/* Responsive Design with Modern Breakpoints */
@media (max-width: 768px) {
    .nav-container {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
        text-align: center;
    }
    
    .logo {
        text-align: center;
        justify-self: center;
    }
    
    .nav-menu {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero h2 {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .gallery-container {
        grid-template-columns: 1fr;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark Mode Support (if system prefers dark) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --nav-bg: #2d2d2d;
        --nav-text: #e0e0e0;
        --card-bg: #2d2d2d;
    }
}